*,
*::before,
*::after{
box-sizing: border-box;
color: #333;
font-family: 'PingFang SC', tahoma, arial, 'helvetica neue', 'hiragino sans gb', 'microsoft yahei ui', 'microsoft yahei', simsun, sans-serif;;
font-size: 12px;
line-height: 1.5;
}
body{
  margin: 0;
}
h1,
h2,
h3,
p{
  margin: 0;
  padding: 0;
}
ul,
ol,
li{
  margin: 0;
  padding: 0;
  list-style: none;  /* //列表样式 */
}
a{
  text-decoration: none;
  color: #333;
}
